It costs energy and time, maybe a lifetime.

它需要时间、精力，也许要一辈子的努力。

youdao

He believes that "a fortunate author can write maybe 12 novels in his lifetime."

他认为“幸运的作家一生可以写12部小说。”

youdao

But some people don't pay attention to traffic safety, have you ever thought, maybe is a little small negligence, it may cause you a lifetime of regret.

但是有些人却不重视交通安全，你是否想过，也许就是一点小疏忽，就有可能造成你一生的遗憾。

youdao

"And here I'm just talking about it in about 15 or 20 seconds, maybe a minute, but it was a lifetime."

VOA: standard.2009.06.02